P1836 Diagnostic Trouble Code

P1836 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a P1836 diagnostic trouble code may include:

The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
Faulty or damaged wiring
Hesitation upon acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed.

Process Tips

Diagnostic trouble code P1836 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P1836.

Fortunately, P1836 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P1836 Trouble Code For Specific Cars

P1836 Jaguar F-pace Seat Driver Forward Switch Circuit Open
P1836 Bmw 235 Camshaft Position Sensor Circuit Malfunction
P1836 Honda Cr-v Pressure Control Solenoid Performance or Stuck Off
P1836 Maybach Sw Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Short To Battery
P1836 Nsu Tt Cylinder 12 Misfire Detected
P1836 Willys-overland 475 SCP (J1850) Invalid or Missing Data for Personalization (Memory) Features
P1836 Gmc Suburban Park Brake Switch # 2 Applied Circuit Failure